Apparatus for forming filaments.



PATENTED APR. 9, 1907.

M. WADDELL. APPARATUS POR FORMING FILAMENTS. APPLIOATIQN FILED APB.. 1a. 1905. RENBWBD PEB. 1a, 1907.

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WITNESSES; i@ I 3o neously with 45 latter.

UNITED sTATEs MONTGOMERY PATENT OEEIOE.

PETTIT, or PHILADELPHIA, PENNsYnvANni.

APPARATUS FOR FORMING FILAIVIENTS. l

No. 849,822. A

Specification of? Iietters Patent.

Patented April v9, 1907.

Anplimeon nea Aprilia 1905. Renewea February 1 9. 1907. serai No. 358.219.

T @ZZ whom, it may concern/5 Be it'known that I, MONTGOMERY WAD- DELL, of New York,y in `the county of New York and State of New York, have invented certain new and useful Improvements in Apparatus for Forming Filaments, whereof the following is a specification, reference-being had to the accompanying drawings. y My invention relates primarily to apparo' ratus for-the formation of filaments from viscose, and in describing it I shall refer to that material as.v the typical one for treatment. er In the drawings, Figure I repersents a vertical longitudinal section through the spinning-tube and its standard, showing the adjacent end of .the trough into which the filaments are delivered from the spinneret. Fig. II is a horizontal section through the 2o standard, taken on the line II II in Fig. I. Fig. III is a fragmentary vertical section ftaken on the line III III of Fig. I. Figs. IV

and V are detail views of the spinneret.

My improvements relate to an apparatus in which the spinneret is rotated during the discharge of the viscose into the coagulating or so-called setting solution, and in l which the spinning-tubeis also arranged to deliver" the setting solution itself simultathe discharge of lthe viscose filaments. l

Referring to the drawings, 1 represents the setting-trough, which is provided with a drip-box `2 at .the end yadjacent to the spin- "'3'5 ningftube,so as to receive any waste viscose which may exudewhen the spinneret is dthrown out` of its. operating position. The spinning-tube is a double member formed of the inner tubular l ortion 4, which extends,

4o throughout the'entire length, and the shorter concentric tubular portion 5 of larger diameter, a tight joint'being formed between the outer sur ace. of the tube-4 and the inner surface of the .tube

5 at the rear extremity ofthe Thetube 4 is the conduit for the setting solution, .and the annular` passage surrounding said tube yand within the inner wall of the tube 5 is the conduitfor the viscose. y

The spinner-et. or discharging device for the viscose 1s preferably formed as follows: The orifice at the fron-t end of the tube 5 is flared cOnicalIy, as indica-ted atj.7 and the inner tube 4 has an enlarged head` 8, with a similarlythrough the shoulders 27, formed at the offconed periphery, which fits tightly within the flared opening of the 'tube 5. Fine longitudinal channels 6 are formed in the exterior of the coned portion of the inner tube 8., so that whenthe two tubes are fitted together the channels'constitute passages for the discharge of the viscose. The spinneret thus comprises an annular series of minute apertures arranged about the orifice ,of the inner tube. n

The rear extremity of the inner tube 4 Ais rotatively mounted in a bearing 10, and both the inner tube 4 and the exterior tube 5 at the region adjacent to the rear end of the latter are rotatively mounted in .a bearin 11. The bearings ,10 an 11 are supported o n arms 13 and 14, which u v 'te at the top of the vertical standard 15. Said' standard is mounted at its lower endv upon a base-piece 16, which is pivotally mounted upon a bracket in a manner which will be here` after explained. The base-,ieee 16, standard 15, and arm 14` are hollow and form a conduit for the admission of the viscose to the spinning-tube. The tubular channel 19 of the base-piece 16 communicates with a short vertical channel 2() in the lowe'i` extremity of the standard 15, and said channel,f

20 leads by a transverse odset into the elon-` gated channelv 21, which is of flattened and relatively wide cross-section, as shown in Fig. II, so as to afford a large interior area. Near the upper end of the standard 15 a return transverse offset 2,2 leads-to a short vertical channel, which in turn communicates with the channel 23, formed in the arm 14.

lThe channel 23 terminates in an annular duct 24, surrounding the outer tube 5, and holes 25 are formed in said tube atvthe region of the duct 24', so as to permit t e viscose to flow into the annular passage formed by the tubes e l A vertical diaphragm 26, ofany suitable material such as is employed in the filtration of viscose, divides the" vertical channel 21 longitudinally, said diaphragm being/conveniently secured in position by'v` passing sets, as shown clearly in Fig. I.

A supply-tube 18 for the setting solution extends from the bearing-piece 10to a point opposite to the rear end ofthe base-piece 16'. T

e interior channel 2 8 of said tube 118 leads, to an annular duct 29 ,formed in the interior y communicates with the source of sup ly for .x 50, whose cone the setting solution, and the channe 19 of the base-piece 16- communicates with the .source of su ply of viscose.

The4 detai of the respective connections are shown in Fig. III. The bracket 30 is deeply recessed in two laces, asv shownat 36 and 37, the outer wa ls 38 and 39 on the respective sides forming bearings for set.

screws 40 and 4l. Vertical channels 42 and 43 extend upwardly through the bottom of the bracket 30 and terminate in two lateral cone-shaped openings 44 and 45, leading into the respective recesses 36 and 37 opposite to the axes ofthe set-screws 40 and 41.

The rear extremity of the base-piece 16 is provided with a cylindrical plug 46, having a coned end, which iits snugly but freely in the correspondingly-coned oriiice 45, and said plug has an'axial channel 47 which communicates with the channel 19 of the basepiece 16.

The lateral extent of the recess 37 permits the insertion 'of the -plug 46, so that -it can be seated within the coned orifice 45, and the set-screw 41 being then adjusted the plug is maintained in position. Thelower end of the pipe 18 is rovided with a similar plug d) end iits within the orifice'44, said plug having an axial channel 51, which communicates with the channel 28 of the pipe- 18. Said plug of the proper dimen i viscose and the pipe53 leading from the source of supply of setting solution, neither of which sources is shown in the drawings.

A pulley 12 is mounted upon'the exterior of the tube 4, and power is ap lied vthereto from the driving-pu ley 31 whic is actuated by means of a fri'ctional pulley 32. -When the splinneret is in the position shown in Fig. I, (w 'ch corresponds with that of its operative discharge,) the driven member on the shaft ofthe ulley 32 is .in frictional engagement with the driving member on the shaft of the pulley 31, so that the spinneret is continuously rotated. When, however, the

standard is tilted backward about the axis y i 6 5 The conduits for the inner tube 4 and outer tube 5 being respectively supplied with setting solutions and viscose, the latter is filtered and discharged in a plurality of iine filaments around the 'outer periphery lof the s inneret, while the settingA solution is also ischarged within the annular group of ilaments thus formed, so as to bring fresh solutioninto direct contact therewith on all sides, and thus insure a rapid setting action. The filaments issuing from the `-spinneret are twisted to ether as they pass through the setting-bat and then wound or coiled in the usual manner. 4 n

Having thus describedmy invention, I claim i 1. The combination of a rotatable inner delivery-tube; an outer delivery-tube surrounding the same and isolated therefrom but rotatable therewith; bearings for said tubes; actuating devices for rotating said tubes; a conduit communicating with the interior of the inner delivery-tube; a conduit of extended interior area communicating with the outer delivery-tube and a filteringdiaphra disposed in said extended conduit, su stantially as set forth.

2. The combination of a rotatable inner delivery-tube; an outer delivery-tube surrounding the same and isolated therefrom but rotatable therewith; bearings for said tubes g actuating devices for rotating said tubes; a conduit communicating withV the interior of the inner delivery-tube; a conduit of extended interior area communicating with the outer delivery-tube; said conduits leading to said tubes from a common regionA of ivotal attachment, substantially as set fortli.

3. The combination of a rotatable inner delivery-tube; an outer delivery-tube surrounding the same and isolated therefrom but rotatable therewith; bearings for said tubes; actuating tubes; a condult communicating with the interiorpof the inner de1ivery-tube; a conduit of extended interior rarea communicatingA with the outerV delivery-tube; said conduits leading to said tubes from a common region of pivotal attachment; frictional driving mechanismsl arranged' substantially as set forth, whereby the spinneret is rotated only in a position correspondingwvith its delivery `of viscose to theA setting solution, but is Withdrawn from o erative engagement with the mechanism w en tilted away from said operative position.

'4. In a spinneret, the combination of an outer delivery-tube having an internallyconed end portion; and an inner deliverytube having a correspondingly-coned. ex,- ternal end ortion, provided with'longitudinal channels, substantially as andfor the purposes set forth. i

5. The combination with a rotatable inner delivery-tube 5 of an outer delivery-tube surdevices for rotating saidv IOO rounding the same' and isolated therefrom but rotatable therewith;lbearings for said tubes; actuating devices `for rotating said tubes; conduits communicating respectively with the interiors of said tubes; means whereby liqueiied cellulose is su plied to" the outer tube; and, means where y a setting solution is supplied toy the inner tube; substantially as set forth. I

6. The combination with a rotatable inner delivery-tube of an outer delivery-tube surroundingthe same and isolated therefrom but rotatable therewitlubearings for said t-ubes; 'actuating devices for irotating said tubes; donduits communicating,respectively with the interiors of said tubes; means whereby viscose is supplied to the outer tube; and, means whereby viscosesetting solution is supplied to theinner tube; substantially as set forth.

7. The 'combination with' an inner delivery tube; of an outer delivery tube` surrounding the same but isolated therefrom;

conduits communicating respectively with the interiors of said tubes; and, liquid meansv excludingfthe delivery ends of said tubes from the atmosphere, substantially as setv tubes; actuating devices `for rotating saidtubes; conduits communicating respectively with the interiors of said tubes; and, means whereby the delivery ends of said t'ubes are submerged in a liquid, substantially as set forth.

, In witness whereof I have hereunto signed my name, at Philadel hia, in the State of Pennsylvania, this 17t day of April, 1905.

` 4 MONTGOMERY WADDELL.

Witnesses:-

JAMES H. BELL,

CLIFTON C. HALLOWELL. 

